How can i disable lightmaps for specific meshes?

Hi there,
For an Archviz project, I’ve got a Library with maybe 1000 books on it.
Here is my perf :
5 fps in Moveable -
6 fps in stationary -
50 fps in static mode, but when I build lightings it fall again at 5fps…

Then, I’m wondering if there is a way to disable Lighmaps just for books ? Or more generaly, what is the best way to achieve this Library ?

heers

Set their Mobility to Movable. Place a Lightmass Importance Volume that will cover this room (or slightly more). Build lighting. This will generate “indirect light samples” floating above the floor, that capture the built static lighting and provide it to movable objects.

Regards,

Oskar